Dandelion-killer.



J. S. FOULKE & T. J. PLAVIN.

DANDELION KILLER. APPLICATION FILED DBO.18.1907.

Patented Mar. 8, 1910.

@XH/14099@ o @l sa... 0MM,

UNITED STATES PATENTA OFFICE.

JOSEPH S. vFOULKE AND THOMAS J. FLAVIN, 0F GUNNISON, COLORADO.

' 'DANDELION-KILLER.

.specification of Letters Patent.

Application led December 18, 1907.

Patented Mar. 8, 1,910.

Serial No. 407.085.

To all urhom it may concern.'

Be it.. known that we, JOSEPH S. FoULKE and THOMAS J. FLAVIN, both citizens of the United States, residing at Gunnison. in the county of Gunnison and State of Colorado, have invented certain new and useful Improvements in Dandelion-Killers; and we do declare the following to`be a full. clear. and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figuresv of reference marked thereon, which form a part of this specification.

Our invention relates to improvements in what we term dandelion killers being a device adapted. for the destruction of noxious weeds or vegetable growths of all kinds, i where it is desirable to kill the root of the July 22nd, 1907.

Having briefly outlined our improved construction, we will proceed 'to describe the same in detail reference being made to the accompanying drawing in which is illustrated an embodiment thereof.

In this drawin Figure 1 is an elevation of our improve device in its completed form. Fig. 2 is a longitudinal section of the device shown on a larger scale and partly broken away intermediate its extremities, this being necessary on account of the limited length of the drawing paper. Fig. 3 is a similar view partly broken away showing the pistdn and plunger valve in a different -relative position.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate the casing or body of the instrument which -:forms a magazine for the liquid to be used in the performance of its function. The upper extremity of this barrel is provided with a.

screw sleeve 6 1n the upper extremity of which is inserted a cap To one side of the sleeve 6 is attached a handle 8 which as shown in the drawing is threaded into areinforced part 9. The cap 7 is provided with a central opening 10 through which passes a rod 12y which protrudes above the barrel, its upper extremity being provided with a hand piece. 12%.

The lower -part of the barrel is provided with a tubular fitting 14 which contains bores of three diameters. The outer or larger portion 15 of the itting is interiorly threaded and screwed upon the lower extremity o-f the barrel. The. boris 1G is interiorly threaded to receive the lower extremity of the interior cylinder 17; while into the smallest bore 1S is inserted and made fastth`e small tube 19 whose lower extremity is closed as shown at 20 and provided with a wedge-shaped part 21 which is pointed at its lower end. to facilitate its insertion into the ground for plant killing purposes.

The upper extremity of the cylinder 7 is provided with a screw cap 22 having an opening 23 through which the rod 12 passes. Within this cylinder and connected with the lower extremity of the rod 12 is a piston 24 which fits closely within the cylinder. Also connected with the piston 24 and leading downwardly therefrom is a smaller rod 25 which enters the tube 19, itslower extremity being provided with a plunger valve 26 which may be said to be normally in position to close orifices 27 Aformed in the tube 1.9 for the escape'of the liquid when the device is in operatlon. y

When the valve 26 is in the position to close the orifices 27, the piston 24 occupies a osition in the upper extremity of the cy inder 17, just` above ports 28 permitting the liquid in the barrel 5 to enter the cylinder 1f? and pass downwardly into the tube 19 above the valve 26. When the parts are in this osition, the liquid cannot escape from the evice.

vThe tting 14 attached to the lower extremity of the barrel 5 as heretofore Vexplained, is provided-with a lateral rojection 29 having a flat upper surface w ereby it is adapted to su port the foot of the user, the object of this eature being to enable the operator to utilize his foot in inserting the lower part of the device into the ground.

Assuming now that it is desired to use the instrument for the killing of noxious weeds or vegetable growths of any kind under cirsutiicient distance to the cylin cumstances requiring that a destructive liquid be brought into actual contact with the roots of the plants, the user grasps the handle 8 of the device with one hand, places one foot uion the projection 29 and forces the pointe extremity1 21 into the earth a ring the orifices 27 in suitable proximity to the root of the plant to be destroyed. He then grasps the hand piece 13 of the manipulating rod 12 and forces the latter downwardly whereby the piston 24 is caused to act upon the liquid in the c linder 17 with Aavdownward pressure. Simu taneously with the downward movement of the plston, the valve 26 is given a v corresponding movement whereby the ports 27 are uncovered, the valve being below the said ports. Then as the descent of the piston continues, the liquid isinjected from the tube 19 through the orifices 27 bringing it into direct Vwcontact. with the root of the plant to be destroyed. This operation may e quickly and easily accomplished, only a short time being required to treatthe dandelions vupon a lawn of considerable size.

Attention is called to the fact that while using the device there is practically no disturbance of the earth since the insertion and` removal of the small tube 19 is practically unnoticeable.

Having thus described our invention, what we claim is:

1. A killer for dandelions and other-noxious weeds or plants, comprising a liquidcontaining magazine, a relatively small tube at the lower extremity of the magazine, a cylinder located in the magazine and in communication with the tube, the cylinder being of greater diameter than the sa1d tube,

er being in communication with the magazine by suitable ports, a piston located 1n the cylinder, a valve located in the lower tube and controlling escape orifices formed in the latter. a suitable connection l liquid, substantially between the piston and the said valve, and means for simultaneously reciprocatin the iston and valve from the outside o the arrel, the relation of the piston and valve being such that when the piston is moved downwardly for the purpose of ejecting the liquid, the valve is given a corresponding movement whereby the ports of the lower tube are uncovered for the escape ofthe as described.

2. The combinatlon of a barrel, a cylinder therein in communication with the barrel, a tube at the lower extremity of the barrel and in communication with the cylinder, the cylinder being of greater diameter than the tube, the tube also having escape orifices, a. valve for controlling said orifices, an ejecting piston located in the cylinder, and means for simultaneously actuating the piston andl from the orifice ofthe latter, the valve being l below the liquid in the tube and forming a support therefor, a connection between the piston and the valve, and means for simu-ltaneously actuating the last named elements from the outside of the barrel, substantially as described. p

In testimony whereof we atlix our signatures in presence of two witnesses.

JOSEPH S. FOULKE. THOMAS J. FLAVIN.

Witnesses:

D. CANADAY, RAY Paorrrr. 

